manual: add extracted figures to qmc statistics lab

git-svn-id: https://subversion.assembla.com/svn/qmcdev/trunk@6881 e5b18d87-469d-4833-9cc0-8cdfa06e9491
This commit is contained in:
Jaron Krogel 2016-05-09 17:23:02 +00:00
parent 3b88c005c7
commit 20905e7318
9 changed files with 57 additions and 0 deletions

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@ -429,6 +429,14 @@ behavior. qmca plots traces with the -t flag.
Type \textbf{qmca -q e -t H.s000.scalar.dat}, which produces a graph of the
trace of the local energy:
\FloatBarrier
\begin{figure}[ht!]
\begin{center}
\includegraphics[trim = 0mm 0mm 0mm 0mm, clip,width=0.75\columnwidth]{./figures/lab_qmc_statistics_tracing1}
\end{center}
\end{figure}
\FloatBarrier
%\includegraphics[scale=0.5]{E_L_H_STO-2G.png}
The solid black line connects the values of the local energy at each MC block
@ -445,6 +453,14 @@ comparable to the total local energy.
Change to directory \texttt{problematic} and type \textbf{qmca -q e -t
H.s000.scalar.dat} to produce this graph:
\FloatBarrier
\begin{figure}[ht!]
\begin{center}
\includegraphics[trim = 0mm 0mm 0mm 0mm, clip,width=0.75\columnwidth]{./figures/lab_qmc_statistics_tracing2}
\end{center}
\end{figure}
\FloatBarrier
%\includegraphics[scale=0.5]{E_L_H_B-splines.png}
Here, the local energy samples cluster around the expected -0.5 hartrees for the
@ -505,6 +521,14 @@ see this, type \textbf{qmca -q e {-}{-}sac *.scalar.dat} to see the energies
and autocorrelation times, then plot with gnuplot by inputting \textbf{gnuplot
H.plt}:
\FloatBarrier
\begin{figure}[ht!]
\begin{center}
\includegraphics[trim = 0mm 0mm 0mm 0mm, clip,width=0.75\columnwidth]{./figures/lab_qmc_statistics_blocking1}
\end{center}
\end{figure}
\FloatBarrier
%\includegraphics[scale=1.0]{timestep_vs_autocorrelation_energy_H_STO-2G.png}
The error bar also increases with the autocorrelation.
@ -550,6 +574,15 @@ visualize the data:
%H series 15 LocalEnergy = -0.465723 +/- 0.004425 2.6
%\end{verbatim}
%\end{shaded}
\FloatBarrier
\begin{figure}[ht!]
\begin{center}
\includegraphics[trim = 0mm 0mm 0mm 0mm, clip,width=0.75\columnwidth]{./figures/lab_qmc_statistics_blocking2}
\end{center}
\end{figure}
\FloatBarrier
%\includegraphics[scale=1.0]{steps_per_block_vs_autocorrelation_energy_H_STO-2G.png}
The greatest number of steps per block produces the smallest autocorrelation
@ -651,6 +684,14 @@ factors of four from 32 to 128 to 512. Type \textbf{qmca -q ev *scalar.dat}
and note the change in the error bar on the local energy as the number of
nodes. Visualize this with \textbf{gnuplot H.plt}:
\FloatBarrier
\begin{figure}[ht!]
\begin{center}
\includegraphics[trim = 0mm 0mm 0mm 0mm, clip,width=0.75\columnwidth]{./figures/lab_qmc_statistics_nodes}
\end{center}
\end{figure}
\FloatBarrier
%\includegraphics[scale=1.0]{nnode_vs_energy_H_STO-2G.png}
Increasing the number of blocks, unlike running in parallel, increases the
@ -664,6 +705,14 @@ To see the effect of increasing the block number, change to the directory
increasing the total number of samples. Visualize the tradeoff by inputting
\textbf{gnuplot H.plt}:
\FloatBarrier
\begin{figure}[ht!]
\begin{center}
\includegraphics[trim = 0mm 0mm 0mm 0mm, clip,width=0.75\columnwidth]{./figures/lab_qmc_statistics_blocks}
\end{center}
\end{figure}
\FloatBarrier
%\includegraphics[scale=1.0]{nblock_vs_tcpu_energy_H_STO-2G.png}
Press \textbf{q [Enter]} to quit gnuplot.
@ -760,6 +809,14 @@ Use \textbf{qmca -q bc *scalar.dat} to see that the CPU time per block
increases with number of electrons in the simulation, then plot the total CPU
time of the simulation by \textbf{gnuplot Nelectron\_tCPU.plt}:
\FloatBarrier
\begin{figure}[ht!]
\begin{center}
\includegraphics[trim = 0mm 0mm 0mm 0mm, clip,width=0.75\columnwidth]{./figures/lab_qmc_statistics_scaling}
\end{center}
\end{figure}
\FloatBarrier
%\includegraphics[scale=1.0]{nelectron_vs_tcpu_H_C_CH_STO-6G.png}
The green pluses represent the CPU time per block at each electron number.

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